Effect of UV light on phytochemical accumulation and expression of anthocyanin biosynthesis genes in red leaf lettuce

Gotō, Eiji; Hayashi, Kanako; Furuyama, S.; Hikosaka, Shoko; Ishigami, Yasuhiro

doi:10.17660/actahortic.2016.1134.24

Cited by 43 publications

(28 citation statements)

References 8 publications

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“…Considering Lactuca sativa (green leaf), Rodriguez et al (2014) found that the use of UV Fluorescent-Tubes (FL-Tubes) supplementary to sunlight results in a maximum of anthocyanins content. Similarly, Goto et al (2016) obtained an increase in anthocyanins exposing red leaf lettuce to three different UV wavelengths in the order 310 nm >325 nm >340 nm. In contrast to that, Vaštakaitë et al (2015a) showed that anthocyanin content in basil was highest without UV radiation.…”

Section: Anthocyaninsmentioning

confidence: 79%

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

et al. 2020

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In contrast to the primary metabolism, responsible for essential synthesis mechanisms and mass balance in plants, the secondary metabolism is not of particular importance for each cell but for the plant organism as its whole. Most of these metabolites show antioxidant properties and are beneficial for human health. In order to affect accumulation of those metabolites, light is an essential factor. It is possible to select various combinations of light intensity and light quality to address corresponding photoreceptors and synthesis. However, the plethora of additional variables considering environmental conditions such as temperature, relative humidity or cultivation method complicate defining specific "light recipes". This review summarizes experiments dealing with consumable leafy greens such as lettuce or basil and the enhancement of three selected metabolites-anthocyanins, carotenoids and flavonols.

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Section: Anthocyaninsmentioning

confidence: 79%

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

et al. 2020

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“…Blue light supplemental to all other spectra increased pigment concentration in cucumber, tomato and sweet pepper transplants, lettuce (Novickovas et al, 2012;Samuoliene et al, 2012c;Sergejeva et al, 2018). UVA and UVB light increased anthocyanin concentration in lettuce and baby leaf lettuce (Li and Kubota, 2009;Goto et al, 2016). Sugars.…”

Section: Nutritional Qualitymentioning

confidence: 97%

Influence of Wavelength of Light on Growth, Yield and Nutritional Quality of Greenhouse Vegetables

Olle

Alsiņa

2019

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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All previous reviews of research on light-emitting diodes (LEDs) have been focused on how different light spectra generally influence plant yield and quality. There are no or almost no reviews on the effect of spectra on sugars or pigment concentration, or yield and growth etc. The role of visible light in food production, as in agriculture and horticulture, is obvious, as light drives photosynthesis, which is crucial for plant growth and development. Solid state lighting using LEDs represents a fundamentally different technology from gaseous discharge-type lamps currently in use. LEDs are important lamp types because the concentration of the light spectrum they emit can be changed to provide plants at various developmental stages with the light spectrum needed. A great deal of studies have been done on the effect of wavelengths of light on growth, yield and nutritional quality of greenhouse vegetables. However, little is known about the mechanisms by which the spectra affect sugar and pigment concentration, and yield, and growth. This article provides a list of how spectra influence the yield, growth, and nutritional quality of greenhouse-grown vegetables. Based on the given information we can conclude that blue, green, and red light are the main light colours that influence positively plant yield, growth and nutrient quality. Sometimes in specific situations, some other light colours are also beneficial, like far red light, orange light and UVA light. Future work on light colour manipulation has potential for producing lamps and greenhouse covers that better support plant yield, growth, and nutrition.

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“…• C and 48%/66% day/night, respectively. When one pair of true leaves fully expanded, basil seedlings were transplanted into square pots (length 9.52 cm, height 8.26 cm, and volume 574 cm 3 ) filled with the Metro-Mix ® 360, and uniform plants were selected and moved to the walk-in growth room for different treatments.…”

Section: Plant Materials and Culturementioning

confidence: 99%

“…However, crops cultivated in indoor CEA systems using artificial lighting are not exposed to ultraviolet radiation. Ultraviolet (UV) radiation is an important environmental signal that initiates plant responses in photosynthetic function, cell division, plant growth, and development [3,4]. In previous studies, UV-B radiation was mainly considered as a stress factor to plants, focusing on the effects of increasing solar UV-B radiation reaching Earth's surface due to stratospheric ozone depletion [5,6].…”

Section: Introductionmentioning

confidence: 99%

Pre-Harvest UV-B Radiation and Photosynthetic Photon Flux Density Interactively Affect Plant Photosynthesis, Growth, and Secondary Metabolites Accumulation in Basil (Ocimum basilicum) Plants

Dou

Niu

Gu³

2019

Agronomy

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Phenolic compounds in basil (Ocimum basilicum) plants grown under a controlled environment are reduced due to the absence of ultraviolet (UV) radiation and low photosynthetic photon flux density (PPFD). To characterize the optimal UV-B radiation dose and PPFD for enhancing the synthesis of phenolic compounds in basil plants without yield reduction, green and purple basil plants grown at two PPFDs, 160 and 224 μmol·m−2·s−1, were treated with five UV-B radiation doses including control, 1 h·d−1 for 2 days, 2 h·d−1 for 2 days, 1 h·d−1 for 5 days, and 2 h·d−1 for 5 days. Supplemental UV-B radiation suppressed plant growth and resulted in reduced plant yield, while high PPFD increased plant yield. Shoot fresh weight in green and purple basil plants was 12%–51% and 6%–44% lower, respectively, after UV-B treatments compared to control. Concentrations of anthocyanin, phenolics, and flavonoids in green basil leaves increased under all UV-B treatments by 9%–18%, 28%–126%, and 80%–169%, respectively, and the increase was greater under low PPFD compared to high PPFD. In purple basil plants, concentrations of phenolics and flavonoids increased after 2 h·d−1 UV-B treatments. Among all treatments, 1 h·d−1 for 2 days UV-B radiation under PPFD of 224 μmol·m−2·s−1 was the optimal condition for green basil production under a controlled environment.

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Effect of UV light on phytochemical accumulation and expression of anthocyanin biosynthesis genes in red leaf lettuce

Cited by 43 publications

References 8 publications

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

Influence of Wavelength of Light on Growth, Yield and Nutritional Quality of Greenhouse Vegetables

Pre-Harvest UV-B Radiation and Photosynthetic Photon Flux Density Interactively Affect Plant Photosynthesis, Growth, and Secondary Metabolites Accumulation in Basil (Ocimum basilicum) Plants

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